@inbook {, title = {Notes Towards an Epigenetic Model of the Evolution of {\textquoteright}Civilisation{\textquoteright}}, booktitle = {The Evolution of Social Systems}, year = {1978}, note = {Research Seminar in Archaeology and Related Subjects, London University, 1974edited by J. Friedman and M. J. Rowlands.ill. ; 26 cm.}, pages = {xiv, 562}, publisher = {Duckworth}, organization = {Duckworth}, address = {London}, keywords = {Social change Congresses, Social evolution Congresses, Social systems Congresses}, isbn = {0715609343}, author = {Friedman, J. and Rowlands, M. J.}, editor = {Rowlands, M. J. and Friedman, J.} }